Home / 8,335.85-12,507.01-3,145.37

Finding the Fourth Proportional to 8,335.85, 12,507.01 and 3,145.37

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Solution

The fourth proportional to 8,335.85, 12,507.01 and 3,145.37 is: 4,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.85 : 12,507.01 = 3,145.37 : x
  2. Step 2: Convert to fraction form
    8,335.85/12,507.01 = 3,145.37/x
  3. Step 3: Cross multiply
    8,335.85x = 12,507.01 × 3,145.37
  4. Step 4: Simplify right side
    8,335.85x = 39,339,103.65
  5. Step 5: Solve for x
    x = 39,339,103.65/8,335.85
  6. Step 6: Final answer
    x = 4,719.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.